The maximum power dissipation of the OPA2107AP is 670mW, which is calculated based on the maximum junction temperature (TJ) of 150°C and the thermal resistance (θJA) of 125°C/W.
To ensure stability in a unity-gain configuration, it's recommended to add a 10nF to 22nF capacitor in parallel with a 1kΩ to 2kΩ resistor between the output and the inverting input. This helps to reduce the phase margin and prevent oscillations.
To minimize noise and EMI, it's recommended to keep the input and output traces as short as possible, use a ground plane, and keep the power supply traces away from the signal traces. Additionally, use a decoupling capacitor (e.g., 0.1uF) between the power supply pins and the ground pin.
The OPA2107AP is rated for operation up to 125°C, but the maximum junction temperature (TJ) should not exceed 150°C. If your application requires operation above 125°C, you should consider using a different op-amp or taking additional thermal management measures.
The choice of resistors for the feedback network depends on the desired gain, bandwidth, and noise requirements. As a general rule, use 1% or 0.1% tolerance resistors with a temperature coefficient of 25ppm/°C or better. For high-gain applications, consider using resistors with a higher power rating to minimize self-heating effects.
OPA2107AP datasheet
by Texas Instruments
Findchips
Findchips